Process of making receptacle-closures



A. L. BERNARDIN AND G. P. PFIRRIVIA'N.

PROCESS OF MAKWG RECEPTACLE CLOSURES.

APPLICATION FILED JUNE 7, 1919.

1,370, 182. v Patented Mar. 1, 1921.

i llllmllllllllll luniiul A TTUHNEYS UNITED s 'rrxrEsV *PATENT y OFFICE.

` ALFRED LOUIS'BER-NARDIN AND GEORGE PETER I PFIRRMAN, 0F EVANSVILLE, INDIANA, ASSIGNORS T BERNARDIN BOTTLE'CAP C0., OF EVANS-VILLE,

INDIANA., A CORPORATION OF INDIANA.. l

i PRocEss or MAKING REcEPTAcLE-cLosUEEs.

' To all whom z't muy comem':

Beit known that we, ALFRED LoUIs BEiy NARDIN and GEORGE PETER PEIRRMAN, citiziens of the United States, and residents of Evansville, in the county of Vanderburg and State ofl Indiana, have invented a new and useful Improvement in Processes of Making Receptacle-Closures, of which the following is a specification.

Our Apresent invention-relates to the art -or process of manufacturing closures for receptacles, such as bottles and the like, and

among its various objects the invention has for its -primary purpose to provide a new and improved process wherein 'thefinished varticle is formed from a previouslyA lacuered sheet without endangering the mutilation of the lacquered surface, and one i which reduces the necessary number of machine operations incident thereto.

A further ob ect is the provision of a new and improved process whereby the lockln of 4a cylinder and cap in the formation o the closure may be effected in a'si'ngle machine operation which serves to rigidly unite the two inlocked relation.

A still further object isthe provision of a process in which the cylinder and its c ap, making up the complete closure, are joined, and the other necessary operationsperformed by pressure applied Alengthwise of the cylinder and thus of the 'complete cap,

so as to avoid lateral pressure and the danger ofmutilation of the cylinder.

' With these and other objects as herein-I after made plain, our-invention resides in the process to be now described with respect to the accompanying drawings, forming a part of this specification, and wherein,

Figure 1 is a perspective view of the circular blank for the cap,

Fig. 2 is a cross section through the Acap after'formation', A

Fig. 3 is a perspective view of the blank for the formation of the cylinder,

Fig. 4 is a perspective view of the cylin- ,der after formation,

Fig. 5 is a cross section therethrough, Fig. 6 is av longitudinal section through the cylinder and the cap after theirt associa` tion together, V Fig'. 7 is a sectional view showing the means employed in the stelo of locking the cap and' cylinder.

Fig. 8 is a vertical longitudinal section l through the closure after the cap and cylin- -der have .been locked together,4

Fig. 9 1s a perspective view of the closure showing the same after the formation of the receptacle engaging indentations, y

Fig. 10 1s another perspective view showing the closure after the formation of .the

annular knurl.

Referring now to these figures, the process initially contemplates the formation of a cap and cylinderl respectively from blanks 10 and 11 shown in Figs. 1 and 3, of which 'the blank 10 is simply a circular disk-cut from A Specification of I.tters Patent. Patented Mar. 1, 1921. application ined June 7, 1919. serial Napaoasie,

to receive one edge of the cylinder as hereinafter described at one end thereof.

The blank 11 from which the cylinder 15 of- Fig. 4 is formed, is provided with reduced ends 16 as seen in Fig. 3 and i's cut in the shape shownl from a previously 'lacquered i sheet and. then bent to cylindrical form, the reduced ends 16 being bent to form rela'- tively engaging lips 17 which when pressed form .an interengaging seam as' seen in Fig. 5.

In the operation of bending the blank and forming the cylinder 15; the latter is preferably reduced or drawn inwardly at one end as vseen at 18 in Fig. 4 so that when the cap is telescoped u -onthis reduced crtion 18, with the capange 13 surroun ing 4the reduced portion, the external diameter of the cap and of the major portion of the body ofthe cylinder 15 will coincide as seen in Fig. 6. This operation of associating the cap and cylinder together is preferably carried out by hand and results as shown` -in the extension of the indented portion 14 of thecap Within the respective end of the cylinder.l The next and final step as far as necessity is concerned is the locking of the associated cap and cylinder, which is accomplished by simultaneously drawing in the reduced end of the cylinder 15 and expanding the inner portion of the cap. into locking engagement. To accomplish this step in the process the associated 'cap and finished -closure and then applying pressure vlengthwise of the cylinder by means of a the pressed portion and said external flange.

cylinder of Fig. 6 are disposed'upon a post 19 as seen in Fig. 7 whose upper end is of the 'conliguration of the inner surface of the punch 20 a portion of which encircles the .cylinder on the post, so thatv the central portion of the cap is ressed outwardly and the res ective .endp of the cylinder drawn inwar ly, thus forming an opening at one end of the cylinder within which a fold 2l of the cap remains and is expanded to a diameter greater than that of the opening at the indrawn end of the cylinder. Thus with these parts firmly ressed together as seen in Fig. 8 a neat, e cient lock is completed in but a single machine operation and wholly by pressure applied lengthwise of the cylinder.

It is desirable that, in the preceding step, the opposite end of the cylinder 15 be formed with a surrounding bead 22 so as to avoid a raw edge for which purpose the post 19 and punch 20 coperate as will be seen in Fig. 7.

The cylinder with the cap locked thereon is then provided with an annular series of indentations '123 therearound adjacent to its beaded edge22, to serveas receptacle engaging members and may alsov be provided with an annular knurl 24 as seen in Fig. 10, it being obvious that these last two formations, namely the indentations 23 and knurl 24, may be accomplished either by lateral pressure or by rolling and'either in separate operations or 'simultaneously and it 1s furthermore obvious that the knurl 24 at least may be eliminatedifso desired.

In any event -it is obvious the process as provided byour invention accomplishes the formation and locked association of the parts in but three machine operations, of which particular attention is drawn to the third and final operation wherein the respective end of the cylinder isvsimultaneously drawn inwardlywith the expanding of thecentral portion of the cap so that it is not only accomplished |by a single machine operation, but is brought about without the necessity of lateral pressure and thus without danger of mutilation of any portion of the cylinder as well as without impairment of its original lacqueredl finish. We claim y l. The herein described process of making a receptacle closure which consists in forming a cylinder anda flanged cap sepa-. 'rate from one another, telescoping the flanged cap externally upon one end of the cylinder, and then simultaneously constricting the said end of the cylinder and pressing a portion of the capv against the inner sur-face of said constricted end of thecylinf der and thus clamping the latter between tral the cap within the cylinder to a diameter greater` than the opening 'formed by. the

drawn edge of the cylinder.

3. The herein described process of making .a receptacle closure which consists in forming a cylinder, then forming a cap with a surrounding llange and a'central indented portionextending in the direction of the flange, telescoping the flanged cap on one end of the cylinder and then simultaneously drawing in the said 'end of the cylinder and expanding the indented portiocp of the cap within the indrawn cylinder en l 4. The herein describedprocess of making-a receptacle closure which consists in providingfa c linder of suitable material-- associating a anged cap externally around one end of the cylinder and then locking the cap and cylinder by simultaneously expanding a portion of the former and constricting a portion of the latter, through the use of pressure applied whollyin the direction of the length of the cylinder to clamp the constricted portion against the external flange.

5. The herein described process of making a receptacle closure which consists in providing a cylinder of suitable material, associating a flanged cap with vone end 'of the cylinder, and thenflocking ythe cap and cylinder by reducingthe diameter of the said end of the cylinder and expanding theeenv portion of the cap to a diameter greater than that of the reduced diameter of the cylinder end. I

6. The herein described process of makingv a receptacle closure which consists in prof viding a cylinder of suitable material, as-

sociating a flanged cap in telescoping relation around one end of the cylinder and then locking kthe cap and cylinder together by simultaneously drawing in the said end of the cylinderand expanding a portion of the .capwithin the indrawn cylinder' end.

inder andexpanding the central portion of f end, associating a flanged cap in telescoping relation with the said reduced end of the cylinder and then locking the cap and cylinder by simultaneously drawing in the edge ofthe cylinder at its reduced end and expanding the central portion of the cap inwardly beyond the indrawn edge of the cylinder.

9. The herein described process of making a receptacle closure which lconsists in forming a cylinder and simultaneously reducing one end thereof, associating a flanged cap in telescoping relation with the said reduced end, and in then formin a bead around the opposite end of the cylinder and locking the cap and cylinder by simultane-- ously drawing in the -reduced end of the cylinder and expanding the central portion of the cap within said reduced end.

10. The herein described process of making a receptacle closure which consists in roviding a cylinder of suitable material, orming'a cap with a -surrounding flange and a central indented portion extending in the same direction as the iange, associating end of the cylinder with its indented portion extending into 4the cylinder and then locking the cap and cylinder by simultaneously drawing in the said end of the cylinder and pressing the indented portion of the cap outwardly to form an. annular expanded lip withinthe indrawn cylinder end.

11. The herein described process of making a receptacle closure which consists in providing a cylinder of suitable material, in`

formin a cap and associating the same with one en of the cylinder so Vthat portions of the cap extend within and without the adjacent cylinder edge and in then locking the cap and cylinder by rsimultaneously drawing in the said cylinder edge of the cap outwardly .the cap in `telescoping relation upon one with that portion eyond the cylindery edge and expanding the cap so as to increase the diameter of its portion withinthe c 1- inder to a diameter greaterl than the 1ndrawn c linder edge.

FRED LOUIS BERNARDIN. GEORGE PETER PFIRRMAN. 

